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| Keywords: Christiaan Huygens Balance Spring.png Drawing of an early balance wheel and balance spring by Dutch scientist Christiaan Huygens inventor of the balance spring published in his letter in the Journal des Sçavants of 25 February 1675 One of the first drawings showing his spiral balance spring G H Huygens called this particular design the 'pirouette' Its innovative feature which Huygens found to be impractical and abandoned was the large gear r s and pinion t between the balance wheel and escapement an attempt to allow the balance wheel to make a wider swing Downloaded from Plomp Reinier http //www antique-horology org/_Editorial/thuretplomp/thuretplomp htm 'Longitude Timekeeper by Isaac Thuret with balance spring invented by Christiaan Huygens' The Horological Foundation website on 2007-11-15 Published 1675 creator Christiaan Huygens Public domain author died in 1695 PD-old-100 Spiral springs Balance wheels History of technology Old horology prints | ||||
